[INFO] fetching crate serde_tuple 0.5.0...
[INFO] testing serde_tuple-0.5.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate serde_tuple 0.5.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate serde_tuple 0.5.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_tuple 0.5.0
[INFO] finished tweaking crates.io crate serde_tuple 0.5.0
[INFO] tweaked toml for crates.io crate serde_tuple 0.5.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate serde_tuple 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_tuple_macros v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 190d0a42b2e7c6c001ae94ea173d2784e591ae96ffcbf5195fed650ad6db404f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "190d0a42b2e7c6c001ae94ea173d2784e591ae96ffcbf5195fed650ad6db404f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "190d0a42b2e7c6c001ae94ea173d2784e591ae96ffcbf5195fed650ad6db404f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "190d0a42b2e7c6c001ae94ea173d2784e591ae96ffcbf5195fed650ad6db404f", kill_on_drop: false }`
[INFO] [stdout] 190d0a42b2e7c6c001ae94ea173d2784e591ae96ffcbf5195fed650ad6db404f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c2f497bfab401497d3bd4512cb9b00b135f20097380b16e546c106370621610
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5c2f497bfab401497d3bd4512cb9b00b135f20097380b16e546c106370621610", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling serde_tuple_macros v0.5.0
[INFO] [stderr]    Compiling serde_tuple v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.42s
[INFO] running `Command { std: "docker" "inspect" "5c2f497bfab401497d3bd4512cb9b00b135f20097380b16e546c106370621610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c2f497bfab401497d3bd4512cb9b00b135f20097380b16e546c106370621610", kill_on_drop: false }`
[INFO] [stdout] 5c2f497bfab401497d3bd4512cb9b00b135f20097380b16e546c106370621610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b5ac0811a58d6d3ec7b48143f90fdeccbb4dbde33d53f5d6e3571e34e13b5ae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9b5ac0811a58d6d3ec7b48143f90fdeccbb4dbde33d53f5d6e3571e34e13b5ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling serde_tuple v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]  --> examples/simple.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Ok`
[INFO] [stdout]   --> examples/simple.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Ok;
[INFO] [stdout]    |        ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "9b5ac0811a58d6d3ec7b48143f90fdeccbb4dbde33d53f5d6e3571e34e13b5ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b5ac0811a58d6d3ec7b48143f90fdeccbb4dbde33d53f5d6e3571e34e13b5ae", kill_on_drop: false }`
[INFO] [stdout] 9b5ac0811a58d6d3ec7b48143f90fdeccbb4dbde33d53f5d6e3571e34e13b5ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aa90549d2ffed1a9efcd10ae38b24ffdca6ca256e79c776702a33b03f6b50af1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aa90549d2ffed1a9efcd10ae38b24ffdca6ca256e79c776702a33b03f6b50af1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::borrow::Cow`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> examples/simple.rs:3:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 3 | use std::borrow::Cow;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Ok`
[INFO] [stderr]   --> examples/simple.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct Ok;
[INFO] [stderr]    |        ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_tuple` (example "simple") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_tuple-8bd5774f1f514163)
[INFO] [stderr]    Doc-tests serde_tuple
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 5) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "aa90549d2ffed1a9efcd10ae38b24ffdca6ca256e79c776702a33b03f6b50af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa90549d2ffed1a9efcd10ae38b24ffdca6ca256e79c776702a33b03f6b50af1", kill_on_drop: false }`
[INFO] [stdout] aa90549d2ffed1a9efcd10ae38b24ffdca6ca256e79c776702a33b03f6b50af1
